| # sdl2 cmake project-config input for ./configure script |
| |
| include(FeatureSummary) |
| set_package_properties(SDL2 PROPERTIES |
| URL "https://www.libsdl.org/" |
| DESCRIPTION "low level access to audio, keyboard, mouse, joystick, and graphics hardware" |
| ) |
| |
| # Copied from `configure_package_config_file` |
| macro(set_and_check _var _file) |
| set(${_var} "${_file}") |
| if(NOT EXISTS "${_file}") |
| message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !") |
| endif() |
| endmacro() |
| |
| get_filename_component(CMAKE_CURRENT_LIST_DIR ${CMAKE_CURRENT_LIST_DIR} REALPATH) |
| get_filename_component(prefix "${CMAKE_CURRENT_LIST_DIR}/@cmake_prefix_relpath@" ABSOLUTE) |
| |
| set(exec_prefix "@exec_prefix@") |
| set(bindir "@bindir@") |
| set(libdir "@libdir@") |
| set(includedir "@includedir@") |
| |
| set_and_check(SDL2_PREFIX "${prefix}") |
| set_and_check(SDL2_EXEC_PREFIX "${exec_prefix}") |
| set_and_check(SDL2_BINDIR "${bindir}") |
| set_and_check(SDL2_INCLUDE_DIR "${includedir}/SDL2") |
| set_and_check(SDL2_LIBDIR "${libdir}") |
| set(SDL2_INCLUDE_DIRS "${includedir};${SDL2_INCLUDE_DIR}") |
| |
| set(SDL2_LIBRARIES SDL2::SDL2) |
| set(SDL2_STATIC_LIBRARIES SDL2::SDL2-static) |
| set(SDL2MAIN_LIBRARY) |
| set(SDL2TEST_LIBRARY SDL2::SDL2test) |
| |
| unset(prefix) |
| unset(exec_prefix) |
| unset(bindir) |
| unset(libdir) |
| unset(includedir) |
| |
| set(_sdl2_libraries_in "@SDL_LIBS@") |
| set(_sdl2_static_private_libs_in "@SDL_STATIC_LIBS@") |
| |
| # Convert _sdl2_libraries to list and keep only libraries + library directories |
| string(REGEX MATCHALL "-[lm]([-a-zA-Z0-9._]+)" _sdl2_libraries "${_sdl2_libraries_in}") |
| string(REGEX REPLACE "^-l" "" _sdl2_libraries "${_sdl2_libraries}") |
| string(REGEX REPLACE ";-l" ";" _sdl2_libraries "${_sdl2_libraries}") |
| string(REGEX MATCHALL "-L([-a-zA-Z0-9._/]+)" _sdl2_libdirs "${_sdl2_libraries_in}") |
| string(REGEX REPLACE "^-L" "" _sdl2_libdirs "${_sdl2_libdirs}") |
| string(REGEX REPLACE ";-L" ";" _sdl2_libdirs "${_sdl2_libdirs}") |
| list(APPEND _sdl2_libdirs "${SDL2_LIBDIR}") |
| |
| # Convert _sdl2_static_private_libs to list and keep only libraries + library directories |
| string(REGEX MATCHALL "(-[lm]([-a-zA-Z0-9._]+))|(-Wl,[^ ]*framework[^ ]*)|(-pthread)" _sdl2_static_private_libs "${_sdl2_static_private_libs_in}") |
| string(REGEX REPLACE "^-l" "" _sdl2_static_private_libs "${_sdl2_static_private_libs}") |
| string(REGEX REPLACE ";-l" ";" _sdl2_static_private_libs "${_sdl2_static_private_libs}") |
| string(REGEX MATCHALL "-L([-a-zA-Z0-9._/]+)" _sdl2_static_private_libdirs "${_sdl2_static_private_libs_in}") |
| string(REGEX REPLACE "^-L" "" _sdl2_static_private_libdirs "${_sdl2_static_private_libdirs}") |
| string(REGEX REPLACE ";-L" ";" _sdl2_static_private_libdirs "${_sdl2_static_private_libdirs}") |
| |
| # Set SDL2_NO_MWINDOWS to a true-ish value to not add the -mwindows link option |
| if(SDL2_NO_MWINDOWS) |
| list(REMOVE_ITEM _sdl2_libraries "-mwindows") |
| endif() |
| |
| if(_sdl2_libraries MATCHES ".*SDL2main.*") |
| list(INSERT SDL2_LIBRARIES 0 SDL2::SDL2main) |
| list(INSERT SDL2_STATIC_LIBRARIES 0 SDL2::SDL2main) |
| endif() |
| |
| set(_sdl2main_library ${SDL2_LIBDIR}/libSDL2main.a) |
| if(EXISTS "${_sdl2main_library}") |
| set(SDL2MAIN_LIBRARY SDL2::SDL2main) |
| if(NOT TARGET SDL2::SDL2main) |
| add_library(SDL2::SDL2main STATIC IMPORTED) |
| set_target_properties(SDL2::SDL2main |
| PROPERTIES |
| IMPORTED_LOCATION "${_sdl2main_library}" |
| COMPATIBLE_INTERFACE_STRING "SDL_VERSION" |
| INTERFACE_SDL_VERSION "SDL2" |
| ) |
| if(WIN32) |
| # INTERFACE_LINK_OPTIONS needs CMake 3.13 |
| cmake_minimum_required(VERSION 3.13) |
| # Mark WinMain/WinMain@16 as undefined, such that it will be withheld by the linker. |
| if(CMAKE_SIZEOF_VOID_P EQUAL 4) |
| set_target_properties(SDL2::SDL2main |
| PROPERTIES |
| INTERFACE_LINK_OPTIONS "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:-Wl,--undefined=_WinMain@16>" |
| ) |
| else() |
| set_target_properties(SDL2::SDL2main |
| PROPERTIES |
| INTERFACE_LINK_OPTIONS "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:-Wl,--undefined=WinMain>" |
| ) |
| endif() |
| endif() |
| endif() |
| set(SDL2_SDL2main_FOUND TRUE) |
| else() |
| set(SDL2_SDL2main_FOUND FALSE) |
| endif() |
| unset(_sdl2main_library) |
| |
| # Remove SDL2 since this is the "central" library |
| # Remove SDL2main since this will be provided by SDL2::SDL2main (if available) |
| # Remove mingw32 and cygwin since these are not needed when using `-Wl,--undefined,WinMain` |
| set(_sdl2_link_libraries ${_sdl2_libraries}) |
| list(REMOVE_ITEM _sdl2_link_libraries SDL2 SDL2main mingw32 cygwin) |
| |
| if(WIN32) |
| set(_sdl2_implib "${SDL2_LIBDIR}/libSDL2.dll.a") |
| set(_sdl2_dll "${SDL2_BINDIR}/SDL2.dll") |
| if(EXISTS "${_sdl2_implib}" AND EXISTS "${_sdl2_dll}") |
| if(NOT TARGET SDL2::SDL2) |
| add_library(SDL2::SDL2 SHARED IMPORTED) |
| set_target_properties(SDL2::SDL2 PROPERTIES |
| INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" |
| INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries}" |
| INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs}" |
| IMPORTED_LINK_INTERFACE_LANGUAGES "C" |
| IMPORTED_IMPLIB "${_sdl2_implib}" |
| IMPORTED_LOCATION "${_sdl2_dll}" |
| COMPATIBLE_INTERFACE_STRING "SDL_VERSION" |
| INTERFACE_SDL_VERSION "SDL2" |
| ) |
| endif() |
| set(SDL2_SDL2_FOUND TRUE) |
| else() |
| set(SDL2_SDL2_FOUND FALSE) |
| endif() |
| unset(_sdl2_implib) |
| unset(_sdl2_dll) |
| else() |
| set(_sdl2_shared "${SDL2_LIBDIR}/libSDL2${CMAKE_SHARED_LIBRARY_SUFFIX}") |
| if(EXISTS "${_sdl2_shared}") |
| if(NOT TARGET SDL2::SDL2) |
| add_library(SDL2::SDL2 SHARED IMPORTED) |
| set_target_properties(SDL2::SDL2 PROPERTIES |
| INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" |
| INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries}" |
| INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs}" |
| IMPORTED_LINK_INTERFACE_LANGUAGES "C" |
| IMPORTED_LOCATION "${_sdl2_shared}" |
| COMPATIBLE_INTERFACE_STRING "SDL_VERSION" |
| INTERFACE_SDL_VERSION "SDL2" |
| ) |
| endif() |
| set(SDL2_SDL2_FOUND TRUE) |
| else() |
| set(SDL2_SDL2_FOUND FALSE) |
| endif() |
| unset(_sdl2_shared) |
| endif() |
| |
| set(_sdl2_static "${SDL2_LIBDIR}/libSDL2.a") |
| if(EXISTS "${_sdl2_static}") |
| if(NOT TARGET SDL2::SDL2-static) |
| add_library(SDL2::SDL2-static STATIC IMPORTED) |
| set_target_properties(SDL2::SDL2-static |
| PROPERTIES |
| IMPORTED_LOCATION "${_sdl2_static}" |
| INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" |
| INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries};${_sdl2_static_private_libs}" |
| INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs};${_sdl2_static_private_libdirs}" |
| IMPORTED_LINK_INTERFACE_LANGUAGES "C" |
| COMPATIBLE_INTERFACE_STRING "SDL_VERSION" |
| INTERFACE_SDL_VERSION "SDL2" |
| ) |
| endif() |
| set(SDL2_SDL2-static_FOUND TRUE) |
| else() |
| set(SDL2_SDL2-static_FOUND FALSE) |
| endif() |
| unset(_sdl2_static) |
| |
| unset(_sdl2_link_libraries) |
| |
| set(_sdl2test_library "${SDL2_LIBDIR}/libSDL2_test.a") |
| if(EXISTS "${_sdl2test_library}") |
| if(NOT TARGET SDL2::SDL2test) |
| add_library(SDL2::SDL2test STATIC IMPORTED) |
| set_target_properties(SDL2::SDL2test |
| PROPERTIES |
| IMPORTED_LOCATION "${_sdl2test_library}" |
| INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" |
| IMPORTED_LINK_INTERFACE_LANGUAGES "C" |
| COMPATIBLE_INTERFACE_STRING "SDL_VERSION" |
| INTERFACE_SDL_VERSION "SDL2" |
| ) |
| endif() |
| set(SDL2_SDL2test_FOUND TRUE) |
| else() |
| set(SDL2_SDL2test_FOUND FALSE) |
| endif() |
| unset(_sdl2test_library) |
| |
| # Copied from `configure_package_config_file` |
| macro(check_required_components _NAME) |
| foreach(comp ${${_NAME}_FIND_COMPONENTS}) |
| if(NOT ${_NAME}_${comp}_FOUND) |
| if(${_NAME}_FIND_REQUIRED_${comp}) |
| set(${_NAME}_FOUND FALSE) |
| endif() |
| endif() |
| endforeach() |
| endmacro() |
| |
| check_required_components(SDL2) |
| |
| # Create SDL2::SDL2 alias for static-only builds |
| if(TARGET SDL2::SDL2-static AND NOT TARGET SDL2::SDL2) |
| if(CMAKE_VERSION VERSION_LESS "3.18") |
| # FIXME: Aliasing local targets is not supported on CMake < 3.18, so make it global. |
| add_library(SDL2::SDL2 INTERFACE IMPORTED) |
| set_target_properties(SDL2::SDL2 PROPERTIES INTERFACE_LINK_LIBRARIES "SDL2::SDL2-static") |
| else() |
| add_library(SDL2::SDL2 ALIAS SDL2::SDL2-static) |
| endif() |
| endif() |